package com.miracle.common.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

public class HttpUtils {

    static boolean proxySet = false;  
    static String proxyHost = "127.0.0.1";  
    static int proxyPort = 8087;  
    /**   
     * 编码   
     * @param source   
     * @return   
     */   
    public static String urlEncode(String source,String encode) {    
        String result = source;    
        try {    
            result = java.net.URLEncoder.encode(source,encode);    
        } catch (UnsupportedEncodingException e) {    
            e.printStackTrace();    
            return "0";    
        }    
        return result;    
    }  
      
      
    public static String urlEncodeGBK(String source) {    
        String result = source;    
        try {    
            result = java.net.URLEncoder.encode(source,"GBK");    
        } catch (UnsupportedEncodingException e) {    
            e.printStackTrace();    
            return "0";    
        }    
        return result;    
    }  
    /**   
     * 发起http请求获取返回结果   
     * @param req_url 请求地址   
     * @param timeOutConnect
     * @param rtimeOutRead
     * @param reqMethod
     * @return   
     */   
    public static String httpRequest(String req_url, int timeOutConnect, int timeOutRead, String reqMethod) {  
        StringBuffer buffer = new StringBuffer();    
        try {    
            URL url = new URL(req_url);    
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();    
     
            httpUrlConn.setDoOutput(true);    
            httpUrlConn.setDoInput(true);    
            httpUrlConn.setUseCaches(false);    
            httpUrlConn.setConnectTimeout(timeOutConnect);  
            httpUrlConn.setReadTimeout(timeOutRead);  
            httpUrlConn.setRequestMethod(reqMethod);   
           // httpUrlConn.setRequestProperty("Accept", "image/png,image/*;q=0.8,*/*;q=0.5");  
           // httpUrlConn.setRequestProperty("Accept-Encoding", "gzip");    
           //httpUrlConn.setRequestProperty("Referer", "http://www.hao123.com/");  
            httpUrlConn.connect();  //发送请求  
            if (httpUrlConn.getResponseCode() == 200) {  
                  
                // 将返回的输入流转换成字符串    
                InputStream inputStream = httpUrlConn.getInputStream();    
                InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");    
                BufferedReader bufferedReader = new BufferedReader(inputStreamReader);    
         
                String str = null;    
                while ((str = bufferedReader.readLine()) != null) {    
                    buffer.append(str);    
                }    
                bufferedReader.close();    
                inputStreamReader.close();    
                // 释放资源    
                inputStream.close();    
                inputStream = null;    
                httpUrlConn.disconnect();  
                              
            }       
     
        } catch (Exception e) {    
            System.out.println(e.getStackTrace());    
        }    
        return buffer.toString();    
    }    
         
    /**   
     * 发送http请求取得返回的输入流   
     * @param requestUrl 请求地址   
     * @return InputStream   
     */   
    public static InputStream httpRequestIO(String requestUrl) {    
        InputStream inputStream = null;    
        try {    
            URL url = new URL(requestUrl);    
            HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();    
            httpUrlConn.setDoInput(true);    
            httpUrlConn.setRequestMethod("GET");    
            httpUrlConn.connect();    
            // 获得返回的输入流    
            inputStream = httpUrlConn.getInputStream();    
        } catch (Exception e) {    
            e.printStackTrace();    
        }    
        return inputStream;    
    }  
       
       
    /**  
     * 向指定URL发送GET方法的请求  
     *   
     * @param url  
     *            发送请求的URL  
     * @param param  
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  
     * @return URL 所代表远程资源的响应结果  
     */  
    public static String sendGet(String url, String param) {  
        String result = "";  
        BufferedReader in = null;  
        try {  
            String urlNameString = url + "?" + param;  
            URL realUrl = new URL(urlNameString);  
            // 打开和URL之间的连接  
            URLConnection connection = realUrl.openConnection();  
            // 设置通用的请求属性  
            connection.setRequestProperty("accept", "*/*");  
            connection.setRequestProperty("connection", "Keep-Alive");  
            connection.setRequestProperty("user-agent",  
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");  
            // 建立实际的连接  
            connection.connect();  
            // 获取所有响应头字段  
            Map<String, List<String>> map = connection.getHeaderFields();  
            // 遍历所有的响应头字段  
            for (String key : map.keySet()) {  
                System.out.println(key + "--->" + map.get(key));  
            }  
            // 定义 BufferedReader输入流来读取URL的响应  
            in = new BufferedReader(new InputStreamReader(  
                    connection.getInputStream()));  
            String line;  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {  
            System.out.println("发送GET请求出现异常！" + e);  
            e.printStackTrace();  
        }  
        // 使用finally块来关闭输入流  
        finally {  
            try {  
                if (in != null) {  
                    in.close();  
                }  
            } catch (Exception e2) {  
                e2.printStackTrace();  
            }  
        }  
        return result;  
    }  
   
    /**  
     * 向指定 URL 发送POST方法的请求  
     *   
     * @param url  
     *            发送请求的 URL  
     * @param param  
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。  
     * @param isproxy  
     *               是否使用代理模式  
     * @return 所代表远程资源的响应结果  
     */  
    public static String sendPost(String url, String param,boolean isproxy) {  
        OutputStreamWriter out = null;  
        BufferedReader in = null;  
        String result = "";  
        try {  
            URL realUrl = new URL(url);  
            HttpURLConnection conn = null;  
            if(isproxy){//使用代理模式  
                @SuppressWarnings("static-access")  
                Proxy proxy = new Proxy(Proxy.Type.DIRECT.HTTP, new InetSocketAddress(proxyHost, proxyPort));  
                conn = (HttpURLConnection) realUrl.openConnection(proxy);  
            }else{  
                conn = (HttpURLConnection) realUrl.openConnection();  
            }  
            // 打开和URL之间的连接  
               
            // 发送POST请求必须设置如下两行  
            conn.setDoOutput(true);  
            conn.setDoInput(true);  
            conn.setRequestMethod("POST");    // POST方法  
               
               
            // 设置通用的请求属性  
            conn.setRequestProperty("accept", "*/*");  
            conn.setRequestProperty("connection", "Keep-Alive");  
            conn.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");  
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");  
               
            conn.connect();  
               
            // 获取URLConnection对象对应的输出流  
            out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");  
            // 发送请求参数  
            out.write(param);  
            // flush输出流的缓冲  
            out.flush();  
            // 定义BufferedReader输入流来读取URL的响应  
            in = new BufferedReader(  
                    new InputStreamReader(conn.getInputStream()));  
            String line;  
            while ((line = in.readLine()) != null) {  
                result += line;  
            }  
        } catch (Exception e) {  
            System.out.println("发送 POST 请求出现异常！"+e);  
            e.printStackTrace();  
        }  
        //使用finally块来关闭输出流、输入流  
        finally{  
            try{  
                if(out!=null){  
                    out.close();  
                }  
                if(in!=null){  
                    in.close();  
                }  
            }  
            catch(IOException ex){  
                ex.printStackTrace();  
            }  
        }  
        return result;  
    }
}
